Home / 215,928,085.16-297,973,346.18-123,138,457.40

Finding the Fourth Proportional to 215,928,085.16, 297,973,346.18 and 123,138,457.40

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Solution

The fourth proportional to 215,928,085.16, 297,973,346.18 and 123,138,457.40 is: 169,926,844.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,928,085.16 : 297,973,346.18 = 123,138,457.40 : x
  2. Step 2: Convert to fraction form
    215,928,085.16/297,973,346.18 = 123,138,457.40/x
  3. Step 3: Cross multiply
    215,928,085.16x = 297,973,346.18 × 123,138,457.40
  4. Step 4: Simplify right side
    215,928,085.16x = 36,691,978,194,921,384
  5. Step 5: Solve for x
    x = 36,691,978,194,921,384/215,928,085.16
  6. Step 6: Final answer
    x = 169,926,844.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.